chemistry

Adding a small amount of platinum powder greatly increases the rate of the reaction above. How might the platinum be affecting the rate of the reaction? (Select all that apply.)

1) It increases the concentration of the reactants.
2) It increases the temperature of the reaction.
3) It lowers the energy of activation for the reaction.
4) It orients the reactants in the proper direction.
5) It increases the energy of activation for the reaction.
6) It acts as a catalyst in the reaction.

using kinetics explain: a.the increasing of concentration of reactants increases the rate of reaction. b.the addition of a catalyst increases the rate at which a reaction will take place. c.and increase in temperature increases reaction …

Explain the following observation in terms of the collision theory, restricting each to about 25 words. NO(g) + O3(g)--> NO2(g) + O2(g) (a) An increase in temperature increases the reaction rate. (b) Compressing the gases into a …

Given the reaction system; 2 NO (g) + O2 (g) -> 2 NO2 (g) Write a brief explanation for each of the following statements in terms of the collision model and/or reactions mechanisms. (1)Increasing the concentration of NO (g)makes …

Given the reaction system; 2 NO (g) + O2 (g) -> 2 NO2 (g) Write a brief explanation for each of the following statements in terms of the collision model and/or reactions mechanisms. (1)Increasing the concentration of NO (g)makes …

a 0.2000 grams sample of aluminum metal is added to a solution containing 1.0000grams of an unknown compound made of platinum and chloride ion. the reaction results in the formation of aluminum chloride and platinum metal. when the …

Before a chemical reaction reaches equilibrium, A. the reaction rates of the reactants and products increase. B. the reaction rate of the reactants increases and the reaction rate of the products decreases. C. the reaction rates of …